API 5DP SPEC drill pipe is a kind of steel pipe with screw thread in the pipe end. It is used for connecting ground rig equipment and drill grinding equipment at the bottom of drilling wells. The main purpose of drill pipes is to transport drilling mud to the drill bit. It rises up, lowers and rotates together with the drill bit. Its strength must withstand the pressure, torque, vibration and other forces caused by the drill hole. In the oil and gas exploration and refining process, API 5DP drill pipe can be used for multiple times. JST provides a number of drill pipes available in various sizes and weights to meet the drilling needs of companies in the oil and gas industry.
Functions
API 5DP SPEC drill pipe is mainly applied in oil and gas exploration and development, such as in the construction of deep wells, horizontal wells and large-displacement wells. Its main functions are as follows:
1.Drill pipes deliver torque and drive the drill bit to drill wells.
2.Exert pressure that can break the rock at the bottom of well on the drill bit.
3.API 5DP SPECdrill pipe transmits flushing fluid. Through the ground high-pressure slush pump or mud pump, drill mud enters into the inner hole of drill string, flows into the bottom of well to wash rock debris and to cool down the drill bit, passes through the annular space between the drill string outer surface and well wall (carrying rock debris), returns to the ground. Thus, we achieve the well drilling purpose.
Applicable Scope of API 5DP Drill Pipe
1.It can be applicable for series of oil drill pipes with API E75 to S135 steel grades and the outer diameter of 2 3/8? to 6 5/8?.
2.It can be used as double circular bead joint drilling pipe with high torsional performance.
3.It can be applied as BNK C95S drilling pipe of special steel grades for sulfur oil wells.
4.API 5DP SPEC drill pipe is furnished in the following API length ranges: range 1 (18 ft to 22 ft), range 2 (27 ft to 30 ft) and range 3 (38 ft to 45 ft).
